[Bug 950220] Re: update-manager -d gives an error, unable to upgrade to 12.04

[Kartik Singhal]

Yes, perhaps, but sorry I won't be able to test it again. After
installing Precise beta from scratch, had re-installed Oneiric for work.
Can't upgrade it just yet.

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https://bugs.launchpad.net/bugs/950220

Title:
  update-manager -d gives an error, unable to upgrade to 12.04

Status in “update-manager” package in Ubuntu:
  Incomplete

Bug description:
  Trying to upgrade from 11.10 to 12.04 beta1

  During the "Setting new software channels" phase of the upgrade
  process, I get the following error message:

  ----------------------------------------
  Invalid package information

  After your package information was updated the essential package 'ubuntu-minimal' can not be found anymore so a bug reporting process is being started.
  ----------------------------------------

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: update-manager 1:0.152.25.8
  ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17
  Uname: Linux 3.0.0-16-generic x86_64
  NonfreeKernelModules: wl fglrx
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  Date: Fri Mar  9 01:06:42 2012
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_IN:en
   PATH=(custom, user)
   LANG=en_IN
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to oneiric on 2012-03-08 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2012-03-09 01:04:56.251091
   Log time: 2012-03-09 01:05:09.450169
   Log time: 2012-03-09 01:06:30.452229
   Log time: 2012-03-09 01:06:46.610358

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